manFSF France machines management - Cookbook: recipe #319, Howto upgrade a Ganeti node

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recipe #319, HowTo: Howto upgrade a Ganeti node

If the new disks have the same size (or a bigger one but you don't care if you lose extra space), you can copy disks using dd.

All these instances, if started during node swap, will need a full resync of the drbd device. To do this without shutting down the vm :

Drbd should automatically sync the slave with the changes, to check this, you can use, for example :

On new node, you should see a short sync each time you activate a disk.
Retry a "gnt-cluster verify" after that, you shouldn't have any error in "verifying" section.

Last update: Thu Oct 14 16:04:32 2010






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